Polarimetric Radar Data and Ice Core Data Collected at Hammarryggen Ice Rise, Antarctica

<p><strong>Polarimetric Radar Data and Ice Core Data Collected at Hammarryggen Ice Rise</strong></p> <p><strong>AUTHORS</strong>:<br> Frank PATTYN, Sarah WAUTHY, Sainan SUN, Jean-Louis TISON, Veronica TSIBULSKAYA<br> Laboratoire de Glaciologie<br> Universit&eacute; libre de Bruxelles (ULB)<br> Brussels, Belgium</p> <p><strong>FUNDING</strong>:<br> Project MASS2ANT (Belgian Science Policy Office - BELSPO)</p> <p>&nbsp;</p> <p>DATA FILES ACCOMPAGING PAPER BY REZA ERSHADI et al. (2023)<br> Deciphering the Ice Dynamic History of a Promontory Ice Rise with&nbsp;Triple Junction: A Polarimetric Radar Approach</p> <p><br> <strong>Autonomous Phase Sensitive Radar (ApRES) measurements Hammaryggen Ice Rise</strong><br> <br> FILES: Folders 2018p00 to 2018p14 + ApRESpos.csv<br> Measurements by F. Pattyn and S. Sun</p> <p>Each folder contains the raw ApRES data sampled at the site. The &#39;Survey&#39; files are single measurements with exactly the same antenna orientation and taken almost a year apart (exact date in the file name). The &#39;Survey&#39; or &#39;DATA&#39; files ending on HH, HV, VV, VH are measurements for each of&nbsp; the four antenna orientations for the polarimetric analysis. Each folder is a data point along a survey line perpendicular to the ice divide of the Hammaryggen ice rise, East Antarctica. The geographic positions of the data points&nbsp;<br> are given in the table ApRESpos.csv.</p> <p><br> <strong>Eigen values of c-axes distribution for discrete samples from the Hammaryggen ice core</strong></p> <p>FILE: HammeryggenIceFabric.xls<br> Measurements by S. Wauthy, J.L. Tison and V. Tsibulskaya</p> <p>This table provides the eigen values of c-axes distribution for discrete samples from&nbsp;the Hammaryggen ice core (Wauthy et al., 2023). Data have been collected from discrete&nbsp;8 cm vertical thin sections.&nbsp;The thin sections were obtained using standard techniques in glaciology (Langway, 1958)&nbsp;and analysed with an Automatic Fabric Analyzer (AFI, Wilson et al., 2003). Raw data from&nbsp;<br> the AFI are at the pixel scale. To derive ice fabric data at the ice grain scale, the FAME&nbsp;software has been used (Hamme and Peternell, 2006). The software delineates grains using&nbsp;image analysis techniques and derives statistics for grain number, size and morphology&nbsp;and ice crystal orientation in space (c-axes). The software calculates eigen vectors and&nbsp;values for the c-axes distribution in each thin section.</p> <p>Column A of the table gives the top depth of each thin section analyzed, columns B to D&nbsp;give the eigen-values of the c-axes distribution used in this paper, to compare to modelled ones.</p> <p>References:</p> <p>Hamme, D.M. and Peternell, M. (2016) FAME software for analysing rock microstructures,&nbsp;Computer and Geosciences, vol. 90, Part A, pp. 24-33. Doi: 10101b/j.cogeo.2016.02.010</p> <p>Langway, C. C. J. (1958). Ice fabrics and the Universal stage, CRREL Technical Report, 62: 16.</p> <p>Wauthy, S., Tison, J.-L., Inoue, M., El Amri, S., Sun, S., Claeys, P., and Pattyn, F.:&nbsp;Physico-chemical properties of the top 120 m of two ice cores in Dronning Maud Land&nbsp;(East Antarctica): an open window on spatial and temporal regional variability of&nbsp;environmental proxies, Earth Syst. Sci. Data Discuss. [preprint],&nbsp;https://doi.org/10.5194/essd-2023-152, in review, 2023</p> <p>Wilson , C.J.L., Russell-Head D.S. and Sim, H.M. (2003) The application of an automated&nbsp;fabric analyser system to the textural evolution of folded ice layers in shear zones,&nbsp;Annals of Glaciology, vol. 37, PP. 7-17</p> <p>&nbsp;</p> <p>&nbsp;</p>